(* Create FUNCTION atMbCall_cext returning UDINT, paste this declaration.
   Properties > Build > External implementation must be selected.
   Library filename and Project Information title: CmpAtomModbus.
   This declaration is the SINGLE external entry point for the C engine. *)
FUNCTION atMbCall_cext : UDINT
VAR_INPUT
    command : UDINT;
    handle : UDINT;
    ipAddress : DWORD;
    port : UINT;
    unitId : BYTE;
    functionCode : BYTE;
    startAddress : UINT;
    quantity : UINT;
    pData : POINTER TO WORD;
    dataCapacity : UDINT;
    pStatus : POINTER TO UDINT;
    statusCapacity : UDINT;
    nowMs : ULINT;
    connectTimeoutMs : UDINT;
    responseTimeoutMs : UDINT;
    retryDelayMs : UDINT;
END_VAR